National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

65°F

18°C

Humidity 51%
Wind Speed W 5 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 May 8:54 pm EDT
Extended Forecast for

3 Miles SW Williamstown NJ

  • Tonight

    Tonight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 88. West wind around 5 mph. Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Calm wind.
Saturday
Sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the morning.
Saturday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 88. West wind around 5 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 62. Calm wind.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
A chance of showers after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Williamstown NJ
 39.65°N 75.01°W (Elev. 118 ft)
Last Update:
4:08 pm EDT May 15, 2026
Forecast Valid:
9pm EDT May 15, 2026-6pm EDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation